// ----------------------------------------------------------------------
// Javascript email validation routines.
// Author: http://members.aol.com/grassblad/html/validEmail.html
//
// Simple routines to quickly pick up obvious email typos.
// ----------------------------------------------------------------------

var chkDot = true;
var usEmail = true;
function validEmail(eAddr) { 
var lenSuffix = (usEmail) ? 4: 3;
var goodAddr = false;
var ndxAt = ndxDot = 0;
ndxAt  = eAddr.indexOf('@');
ndxDot = eAddr.indexOf('.');
ndxDot2 = eAddr.lastIndexOf('.');
if ( (ndxDot < 0) || (ndxAt < 0) )
alert('Invalid email address');  
else if ( (ndxDot2 - 3) <= ndxAt)
alert('Invalid email address');
else
goodAddr = true;
return (goodAddr);                       
} ;